4-letter words containing bo
- oboe — Object-code Buffer Overrun Evaluator
- obol — a silver coin of ancient Greece, the sixth part of a drachma.
- sibo — SIxteen Bit Organisers
- sybo — a spring onion
- umbo — a boss on a shield, as one at the center of a circular shield.
- wbbo — World Black Belt Organization
- wcbo — World Chess Boxing Organization
- yebo — an expression of affirmation
- zibo — a city in central Shandong province, in NE China.